Lucent Technologies 555-661-140 Telephone User Manual


 
MERLIN LEGEND Communications System Release 6.1
Installation
555-661-140
Issue 1
August 1998
Installing the Control Unit
Page 2-9
AC Power and Grounding
!
WARNING:
!
Hazardous voltages are present during the following tests. Follow
all instructions carefully when working with AC power line
voltages.
Using an Ideal 61-035 Circuit Tester (or Equivalent)
!Plug the circuit tester into the outlet that you want to test.
If the circuit is properly grounded, the yellow and white lights on the
tester turn on.
!Unplug the circuit tester.
Using a Volt-Ohm Milliammeter (VOM)
!Set the VOM to the lowest scale on which you can read 130 V AC.
!Measure the AC outlet voltages. Figure 2-2 on page 2-10
.
Phase to ground should be 110 to 125 V AC.
Neutral to ground should be less than 1 V AC.
Phase to neutral should be 110 to 125 V AC.